Hi, I am only 14 but have gotten into Fusion 360 and Autodesk Inventor, I 3D print most of my designs so I use calipers a lot. Up till now I,ve been using a $5 pair of cheap calipers that just broke. My grandpa being a machinist said he would buy me a “proper” Mitutoyo caliper set. I have been looking at them and I’m confused I know I don’t need a super pricy coolant resistant pair I just want a 6” 150mm set with the position hold thing. I think it’s called AOS? But I’m confused at to what a certified pair is. And also I was on amazon and someone said that those were counterfeit, people counterfeit calipers?! Where do you buy the real ones? I can’t buy on the Mitutoyo website it’s basicaly just a bunch of PDFs of specs that overwhelm me. Please help me! Thank you in advance for any help given!